American Journal of Neuroradiology 23:935-937, June-July 2002
© 2002 American Society of Neuroradiology
Case Report
HEAD AND NECK
Plain Film Imaging of Baerveldt Glaucoma Drainage Implants
a From the Department of Ophthalmology, University of Miami School of Medicine, Miami, FL
Address reprint requests to Richard K. Parrish II, MD, Department of Ophthalmology, University of Miami School of Medicine, 900 NW 17th Street, Miami, FL 33136
Summary: A glaucoma drainage implant was detected on plain skull radiographs before MR imaging examination of the brain. The patient was denied the MR imaging for fear of dislodging the "metallic foreign body." The Baerveldt glaucoma drainage implant was mistakenly identified as an orbital metallic object based on its radiographic characteristics. Because none of the current glaucoma drainage implants contain ferromagnetic material, patients with these devices can undergo MR imaging without special precaution.
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